Talking about continuous efforts, luckily for Gon and Killua Pitou has been going through the same without rest as well. Not fighting, but she (yeah, I paid real attention to her body for the first time, and I'll call Pitou she from now on) has been maintaining an army of puppets plus monitoring the palace surroundings with nen practically nonstop. To that must also be added healing the king's arm, which probably wasn't a breeze either, since repairing is always much harder than destroying. Thus logic dictates Gon & Killua won't be fighting Pitou at her best state.